// ==================== 增强功能测试文件 ====================
// 文件功能：测试三级权限管理、数据导出和插件系统的各项功能
// 测试范围：权限验证、数据导出、插件加载、用户管理等
// 作者：审计追踪系统开发团队

#include <QtTest/QtTest>
#include <QApplication>
#include <QTemporaryDir>
#include <QJsonObject>
#include <QJsonDocument>
#include "permissionmanager.h"
#include "dataexporter.h"
#include "pluginsystem.h"
#include "auditlogger.h"

/**
 * @brief 增强功能测试类
 * 全面测试系统的三大核心增强功能
 */
class EnhancedFeaturesTest : public QObject
{
    Q_OBJECT

private slots:
    // ==================== 初始化和清理 ====================
    void initTestCase();        // 测试开始前的初始化
    void cleanupTestCase();     // 测试结束后的清理
    void init();               // 每个测试前的准备
    void cleanup();            // 每个测试后的清理

    // ==================== 三级权限管理系统测试 ====================
    void testPermissionLevels();           // 测试权限等级
    void testRoleBasedPermissions();       // 测试基于角色的权限
    void testPermissionInheritance();      // 测试权限继承
    void testCustomPermissions();          // 测试自定义权限
    void testPermissionPersistence();      // 测试权限持久化

    // ==================== 高级数据导出系统测试 ====================
    void testExportFormats();              // 测试各种导出格式
    void testExportFiltering();            // 测试导出过滤功能
    void testExportConfiguration();        // 测试导出配置
    void testBatchExport();                // 测试批量导出
    void testExportValidation();           // 测试导出验证

    // ==================== 插件系统架构测试 ====================
    void testPluginLoading();              // 测试插件加载
    void testPluginCommunication();        // 测试插件通信
    void testPluginPermissions();          // 测试插件权限
    void testPluginSecurity();             // 测试插件安全
    void testExternalIntegration();        // 测试外部集成

    // ==================== 集成测试 ====================
    void testSystemIntegration();          // 测试系统集成
    void testPerformanceUnderLoad();       // 测试负载性能
    void testErrorHandling();              // 测试错误处理

private:
    // 测试辅助方法
    void createTestAuditRecords();
    void verifyExportedFile(const QString &filePath, ExportFormat format);
    bool createTestPlugin(const QString &pluginPath);
    
    // 测试数据成员
    PermissionManager *m_permissionManager;
    DataExporter *m_dataExporter;
    PluginSystem *m_pluginSystem;
    AuditLogger *m_auditLogger;
    QTemporaryDir *m_tempDir;
    QVector<AuditLogger::AuditRecord> m_testRecords;
};

void EnhancedFeaturesTest::initTestCase()
{
    qDebug() << "开始增强功能测试...";
    
    // 创建临时目录用于测试
    m_tempDir = new QTemporaryDir();
    QVERIFY(m_tempDir->isValid());
    
    // 初始化核心组件
    m_permissionManager = new PermissionManager(this);
    m_dataExporter = new DataExporter(this);
    m_pluginSystem = new PluginSystem(this);
    m_auditLogger = new AuditLogger(this);
    
    // 初始化审计日志系统
    QString dbPath = m_tempDir->path() + "/test_audit.db";
    QVERIFY(m_auditLogger->initialize(dbPath, "test_password"));
    
    // 创建测试数据
    createTestAuditRecords();
}

void EnhancedFeaturesTest::cleanupTestCase()
{
    delete m_tempDir;
    qDebug() << "增强功能测试完成。";
}

void EnhancedFeaturesTest::init()
{
    // 每个测试前的准备工作
}

void EnhancedFeaturesTest::cleanup()
{
    // 每个测试后的清理工作
}

// ==================== 三级权限管理系统测试 ====================

void EnhancedFeaturesTest::testPermissionLevels()
{
    qDebug() << "测试三级权限等级...";
    
    // 测试查看者权限（Level 1）
    m_permissionManager->setUserRole("viewer_user", PermissionLevel::VIEWER);
    QCOMPARE(m_permissionManager->getUserPermissionLevel("viewer_user"), PermissionLevel::VIEWER);
    QVERIFY(m_permissionManager->hasPermission("viewer_user", PermissionCategory::AUDIT_VIEW));
    QVERIFY(!m_permissionManager->hasPermission("viewer_user", PermissionCategory::USER_MANAGEMENT));
    
    // 测试操作员权限（Level 2）
    m_permissionManager->setUserRole("operator_user", PermissionLevel::OPERATOR);
    QCOMPARE(m_permissionManager->getUserPermissionLevel("operator_user"), PermissionLevel::OPERATOR);
    QVERIFY(m_permissionManager->hasPermission("operator_user", PermissionCategory::AUDIT_VIEW));
    QVERIFY(m_permissionManager->hasPermission("operator_user", PermissionCategory::AUDIT_EXPORT));
    QVERIFY(!m_permissionManager->hasPermission("operator_user", PermissionCategory::USER_MANAGEMENT));
    
    // 测试管理员权限（Level 3）
    m_permissionManager->setUserRole("admin_user", PermissionLevel::ADMIN);
    QCOMPARE(m_permissionManager->getUserPermissionLevel("admin_user"), PermissionLevel::ADMIN);
    QVERIFY(m_permissionManager->hasPermission("admin_user", PermissionCategory::AUDIT_VIEW));
    QVERIFY(m_permissionManager->hasPermission("admin_user", PermissionCategory::AUDIT_EXPORT));
    QVERIFY(m_permissionManager->hasPermission("admin_user", PermissionCategory::USER_MANAGEMENT));
    
    qDebug() << "三级权限等级测试通过。";
}

void EnhancedFeaturesTest::testRoleBasedPermissions()
{
    qDebug() << "测试基于角色的权限管理...";
    
    // 测试角色设置
    QVERIFY(m_permissionManager->setUserRole("test_user", "operator"));
    QCOMPARE(m_permissionManager->getUserRole("test_user"), QString("operator"));
    
    // 测试角色权限
    QStringList operatorPermissions = m_permissionManager->getPermissionsForRole("operator");
    QVERIFY(operatorPermissions.contains("audit.view"));
    QVERIFY(operatorPermissions.contains("audit.export"));
    QVERIFY(!operatorPermissions.contains("user.manage"));
    
    // 测试可用角色列表
    QStringList availableRoles = m_permissionManager->getAvailableRoles();
    QVERIFY(availableRoles.contains("viewer"));
    QVERIFY(availableRoles.contains("operator"));
    QVERIFY(availableRoles.contains("admin"));
    
    qDebug() << "基于角色的权限管理测试通过。";
}

void EnhancedFeaturesTest::testCustomPermissions()
{
    qDebug() << "测试自定义权限功能...";
    
    QString userId = "custom_user";
    QString customPermission = "custom.special.permission";
    
    // 授予自定义权限
    QVERIFY(m_permissionManager->grantCustomPermission(userId, customPermission));
    QVERIFY(m_permissionManager->hasPermission(userId, customPermission));
    
    // 撤销自定义权限
    QVERIFY(m_permissionManager->revokeCustomPermission(userId, customPermission));
    QVERIFY(!m_permissionManager->hasPermission(userId, customPermission));
    
    qDebug() << "自定义权限功能测试通过。";
}

// ==================== 高级数据导出系统测试 ====================

void EnhancedFeaturesTest::testExportFormats()
{
    qDebug() << "测试各种导出格式...";
    
    // 测试支持的格式列表
    QStringList formats = m_dataExporter->getAvailableFormats();
    QVERIFY(formats.contains("CSV"));
    QVERIFY(formats.contains("JSON"));
    QVERIFY(formats.contains("XML"));
    QVERIFY(formats.contains("HTML"));
    
    // 测试CSV导出
    ExportConfig csvConfig;
    csvConfig.format = ExportFormat::CSV;
    csvConfig.outputPath = m_tempDir->path() + "/test_export.csv";
    csvConfig.includeHeaders = true;
    
    QVERIFY(m_dataExporter->exportToCSV(csvConfig.outputPath, m_testRecords, csvConfig));
    verifyExportedFile(csvConfig.outputPath, ExportFormat::CSV);
    
    // 测试JSON导出
    ExportConfig jsonConfig;
    jsonConfig.format = ExportFormat::JSON;
    jsonConfig.outputPath = m_tempDir->path() + "/test_export.json";
    
    QVERIFY(m_dataExporter->exportToJSON(jsonConfig.outputPath, m_testRecords, jsonConfig));
    verifyExportedFile(jsonConfig.outputPath, ExportFormat::JSON);
    
    qDebug() << "各种导出格式测试通过。";
}

void EnhancedFeaturesTest::testExportFiltering()
{
    qDebug() << "测试导出过滤功能...";
    
    ExportConfig config;
    config.format = ExportFormat::JSON;
    config.outputPath = m_tempDir->path() + "/filtered_export.json";
    
    // 设置过滤条件
    config.filter.startDate = QDateTime::currentDateTime().addDays(-7);
    config.filter.endDate = QDateTime::currentDateTime();
    config.filter.userIds << "test_user1" << "test_user2";
    config.filter.maxRecords = 10;
    
    // 验证配置
    QString errorMessage;
    QVERIFY(m_dataExporter->validateExportConfig(config, errorMessage));
    
    // 执行导出
    QVERIFY(m_dataExporter->exportData(config));
    
    qDebug() << "导出过滤功能测试通过。";
}

// ==================== 插件系统架构测试 ====================

void EnhancedFeaturesTest::testPluginLoading()
{
    qDebug() << "测试插件加载功能...";
    
    // 创建测试插件
    QString pluginPath = m_tempDir->path() + "/test_plugin.dll";
    QVERIFY(createTestPlugin(pluginPath));
    
    // 测试插件发现
    QStringList foundPlugins = m_pluginSystem->scanForPlugins(m_tempDir->path());
    QVERIFY(!foundPlugins.isEmpty());
    
    // 测试插件信息获取
    QList<PluginInfo> availablePlugins = m_pluginSystem->getAvailablePlugins();
    
    qDebug() << "插件加载功能测试通过。";
}

void EnhancedFeaturesTest::testPluginPermissions()
{
    qDebug() << "测试插件权限管理...";
    
    QString pluginId = "test_plugin";
    QString permission = "plugin.test.permission";
    
    // 注册插件权限
    QVERIFY(m_pluginSystem->registerPluginPermission(pluginId, permission));
    
    // 测试插件访问权限
    m_permissionManager->setUserRole("plugin_user", PermissionLevel::ADMIN);
    QVERIFY(m_permissionManager->canAccessPlugin("plugin_user", pluginId));
    
    m_permissionManager->setUserRole("limited_user", PermissionLevel::VIEWER);
    // 查看者可能无法访问插件，取决于具体实现
    
    qDebug() << "插件权限管理测试通过。";
}

// ==================== 辅助测试方法 ====================

void EnhancedFeaturesTest::createTestAuditRecords()
{
    // 创建测试用的审计记录
    for (int i = 0; i < 10; ++i) {
        AuditLogger::AuditRecord record;
        record.timestamp = QDateTime::currentDateTime().addSecs(-i * 3600);
        record.userId = QString("test_user%1").arg(i % 3 + 1);
        record.action = static_cast<AuditLogger::ActionType>(i % 7);
        record.tableName = QString("test_table_%1").arg(i % 2);
        record.recordId = QString("record_%1").arg(i);
        record.description = QString("测试审计记录 %1").arg(i);
        
        m_testRecords.append(record);
        m_auditLogger->logEvent(record);
    }
}

void EnhancedFeaturesTest::verifyExportedFile(const QString &filePath, ExportFormat format)
{
    QFile file(filePath);
    QVERIFY(file.exists());
    QVERIFY(file.open(QIODevice::ReadOnly));
    
    QByteArray content = file.readAll();
    QVERIFY(!content.isEmpty());
    
    switch (format) {
    case ExportFormat::CSV:
        QVERIFY(content.contains("Timestamp"));  // 检查CSV头部
        break;
    case ExportFormat::JSON:
        {
            QJsonParseError error;
            QJsonDocument doc = QJsonDocument::fromJson(content, &error);
            QCOMPARE(error.error, QJsonParseError::NoError);
        }
        break;
    case ExportFormat::XML:
        QVERIFY(content.contains("<?xml"));  // 检查XML声明
        break;
    default:
        break;
    }
}

bool EnhancedFeaturesTest::createTestPlugin(const QString &pluginPath)
{
    // 在实际测试中，这里会创建一个简单的测试插件文件
    // 为了简化，这里只是创建一个空文件
    QFile file(pluginPath);
    return file.open(QIODevice::WriteOnly) && file.write("test plugin content") > 0;
}

// ==================== 集成测试 ====================

void EnhancedFeaturesTest::testSystemIntegration()
{
    qDebug() << "测试系统集成功能...";
    
    // 测试权限管理与导出系统的集成
    QString userId = "integration_user";
    m_permissionManager->setUserRole(userId, PermissionLevel::OPERATOR);
    
    // 操作员应该能够导出数据
    QVERIFY(m_permissionManager->hasPermission(userId, PermissionCategory::AUDIT_EXPORT));
    
    // 但不能管理用户
    QVERIFY(!m_permissionManager->hasPermission(userId, PermissionCategory::USER_MANAGEMENT));
    
    qDebug() << "系统集成功能测试通过。";
}

void EnhancedFeaturesTest::testErrorHandling()
{
    qDebug() << "测试错误处理机制...";
    
    // 测试无效的导出配置
    ExportConfig invalidConfig;
    invalidConfig.outputPath = "";  // 无效路径
    
    QString errorMessage;
    QVERIFY(!m_dataExporter->validateExportConfig(invalidConfig, errorMessage));
    QVERIFY(!errorMessage.isEmpty());
    
    // 测试无效的权限操作
    QVERIFY(!m_permissionManager->setUserRole("", PermissionLevel::ADMIN));
    
    qDebug() << "错误处理机制测试通过。";
}

// 包含moc文件以支持Qt的元对象系统
#include "test_enhanced_features.moc"

// 主测试函数
QTEST_MAIN(EnhancedFeaturesTest)